Growth Performance, Carcass Characteristics and Economics of Feeding Processed Velvet Bean (Mucuna Sloanei) and Multi-Enzyme (Maxigrain®) to Broiler Chickens
Abstract
This study was carried out to evaluate the growth performance, carcass characteristics, and
economy of broilers fed diets containing processed velvet bean (Mucuna sloanei) meal and multienzyme
(maxigrain®). A total of 150 day old Anak broiler birds were randomly assigned to 5
treatment diets (Diet 1 served as the control while diet 2, 3, 4, and 5 contain enzyme (maxigrain®)
and 8.5% raw, boiled and dehulled (BDM), boiled (BM), and toasted (TM) velvet bean,
respectively) in a completely randomized design after a week of stabilization. The experiment
lasted for 49 days. Data were collected on growth, carcass characteristics and economics of
feeding the chicks to broiler chickens.. Proximate composition of Velvet bean showed significant
(P<0.05) difference in all except for gross energy and dry matter. D3 had significantly (p<0.05)
higher CP value (21.00%) followed by D5 (18.50%) while raw had the least (16.63%). D3 had the
highest (p<0.05) NFE (55.20%) while D5 had the least (46.78%). D1 (1381.70g), D3 (1313.70
g), and D4 (1305.70 g) had higher weight gain (p<0.05) than others while the least was recorded
by D5 (825.00 g). D3 had total feed intake 1315.7 g that was significantly higher (p<0.05) than
others followed by D1 (1341.7 g), while the least value was D5 (1079.7 g). There were significant
(p<0.05) differences obtained in all the parameters considered for cut parts except for drumstick,
thigh and wing. The cost of feed consumed per bird was highest (p<0.05) in D2 (₦654.00) and D5
(₦655.00) while the least was D3 (₦500.75). D5 (₦345.65) had significantly (p<0.05) higher feed
cost/kg weight gain while diet 3 (₦240.55) and diet 2 (₦236.00) had low feed cost/kg weight gain.
For revenue and gross margin, diet 3 performed better than other treatment diets but similar with
the control. Diet 3 had significantly (p<0.05) higher revenue (₦1345.65) and gross margin
(₦854.00) than other treatment diets. There for the comparatively better performance of birds fed
diet 3 (boiled & dehulled Mucuna plus enzyme) compared to the other treatment diets tends to
suggest that processing (boiling and dehulling) of Mucuna sloanei seed and addition of enzyme
can improve weight gain and feed intake of broiler chickens fed Mucuna based diet.
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